INSTALLATION PROCEDURES
A. Location of Indoor units
The Indoor FCU should be ideally located in a plenum
or false ceiling clearance/cavity near the conditioned area
where the access to the chilled water piping connection
is easy.
Position the FCU in a way to avoid obstruction to return
airflow, supply air, electrical cable connections,
condensate drain pipe and chilled water piping.
The required clearances are shown in figure-1. (All
dimensions are in cm).
B. Site Preparation
The site for the FCU installation should be free from any
obstacle that can be hazardous to the installation
personnel and/or damaging to the unit.
Properly identify all existing building utilities (such as
electrical cables, plumbing pipes, sanitary hardware, etc.).
Make sure that live electrical cables are not hanging or
running near the FCU proposed location or obstructing
in any way the movement of the installation personnel.
Clear the floor from all objects with sharp edges.
Remove liquid or slippery material from the installation
site before proceeding.
FIGURE - 1
REQUIRED INDOOR UNIT CLEARANCES
FIGURE - 3
FIGURE - 2
C. Indoor unit installation
Cut the top carton panel and mark it with a sketch simulating
the FCU. Use it as a template for positioning the unit and the
corresponding mounting brackets hole/slot.
- Put the template against the ceiling and mark the
corners. Make sure that you leave at least 30 cm.
clearance from the rear and anther 50 cm. from the
right hand side of the unit (when looking at the unit
from the supply side) as shown in figure-1.
- Mark the 4 holes.
- Drill those 4 holes. Insert the threaded rods using
anchor bolts (8 mm).
- Fit and tighten the nuts at the loose end of each threaded
rod as per the arrangement show in figure- 2.
- Lift the FCU unit and insert the threaded rods into the
mounting bracket slots. Let it rest on the lower nut/washer.
- After you complete the electrical connections (see
corresponding sections (Electrical Wiring and
Thermostat Installation and Connection)), level the FCU
and press it against the ceiling (ensuring to separate it
from the ceiling by inserting rubber cork pieces) by further
tightening action of the lower nut(s). For added security
counter tighten the upper nut as shown in figure-3. Cut
the extra length of the threaded rod and round the edges.
Note:
Always leave 7 to 8 cm extra length in the
threaded rod below the lower nut/washer.
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